My computer won’t power on

I have an Inspiron 15 5000 series with an intel core i7 processor. It would not power on earlier today, so I assumed that it was dead, but once I plugged it up to the charger nothing happened. I tried taking out the battery and putting it back in after holding down the power button for 30 seconds but that didn’t work. I still have the charger in the computer and the little light on my computer is on but my screen is black and the computer is not making any noise. Please help!!!